XDA is down, so I can't tell how much has been done, development wise, but its looking bleak. I'd like to help out, even though I do not have the device.
First, we need to get some Odin images going. This is BEST done with somebody who has a stock, but rooted, Samsung Continuum.
This has been adapted from here:
Creating Custom ROMs/Backups for Odin - Android Forums
First, you need to root, via either one of the one click methods, or z4root.
Then, you must setup adb, if you haven't already. Alternatively, you could be a masochist and use the terminal on the device, downloaded from the market.
As root (#)
To backup kernel parition:
dd if=/dev/block/bml7 of=/sdcard/kernel bs=4096
To backup recovery partition (probably the same as the kernel):
dd if=/dev/block/bml8 of=/sdcard/recovery bs=4096
To backup system:
dd if=/dev/block/stl9 of=/sdcard/system bs=4096
Backup the kernel, system, and recovery images from your sdcard to your computer. Make backups!
Rename kernel to: zImage
Rename recovery to recovery.bin
Rename system to factoryfs.rfs
The next part requires linux, OS X, or cygwin.
If you are using heimdall, the above images are ready for flashing.
If using Odin, we must still package them.
$ tar -H ustar -c image_1 [image_2 ...] > your_odin_package.tar
If you want an all in one package, put each image name in. if not, make one image per tar file.
Example: tar -H ustar -c zImage > zImage.tar
This would give us a zImage.tar file. Now we will turn it into a tar.md5 file, so that Odin can make sure its not corrupt before flashing.
$ md5sum -t your_odin_package.tar >> your_odin_package.tar
$ mv your_odin_package.tar your_odin_package.tar.md5
using the above example, your final file would be zImage.tar.md5.
This gets used with Odin3 v.1.30, in the PDA
section. You need to install Samsung usb drivers prior to, of course, and the phone must be in download mode.
ALWAYS USE THE PDA SECTION IN ODIN.
Odin can be found here:
Download mode (on the Fascinate anyway), can be achieved by powering off device, holding DOWN volume, and plugging in the usb cable, or hitting power.
I plan on posting some other stuff here, so PLEASE, someone make these images for everyone! Its essential to have a fall back. I do not own the device, so I cannot.